It has been shown that the echographic motion of the posterior aortic wall in diastole is closely related to the underlying left atrial events, possibly due to the anatomical proximity of the two structures. We observed that the pulmonary artery shares a similar close anatomical relationship with the left atrium. The present study in 55 consecutive patients with adequate echocardiographic recor...

The left ventricle is cone shaped. Although the limits are imprecise it can be divided, except at the apex, into four walls, named classically septal, anterior, lateral, and inferoposterior (Figure 2). The basal part of the inferoposterior wall often branches upward and then becomes really posterior and for that reason it was named the posterior wall. For more than 60 years, the terms posterior...